Nebulae

Azure Nebula1A type 11 nebula on the border between the Klingon Empire and the Federation. Captain Sulu attempted to use the Azure nebula to cross into Klingon space in 2293 so as to rescue Captain Kirk an McCoy from Rura Pente. The attempt was foiled by a Klingon battle cruiser. The Azure nebula contains significant amounts of sirillium gas.1